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        <li class="chapter " data-level="1.1" data-path="../">
            
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                    1.前言
            
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                    2.坚果派介绍
            
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                    3.Flutter鸿蒙化
            
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                    3.1 Flutter介绍
            
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                    3.2 背景与原理
            
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                    3.3 功能开发
            
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                    3.4 Flutter Engine编译
            
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                    3.5 FutterEntry使用
            
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                    3.6 性能调优
            
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                    3.7 OHOS平台适配flutter三方库
            
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                    3.8 如何使用Flutter Channel
            
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                    3.9 开发Flutter静态库
            
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                    3.10 FAQ
            
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                    3.11 服务
            
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                    3.12 资料整理
            
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        <li class="chapter " data-level="1.3.13" data-path="../chapter2/2.3Impeller渲染引擎.html">
            
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                    3.13 Impeller渲染引擎
            
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                    4.Flutter与Dart介绍
            
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                    4.1 Flutter介绍
            
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                    4.2 Dart介绍
            
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                    5.HarmonyOS/OpenHarmony与ArkTS介绍
            
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                    5.1 HarmonyOS
            
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        <li class="chapter " data-level="1.5.2" data-path="../chapter4/4.2OpenHarmony.html">
            
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                    5.2 OpenHarmony
            
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        <li class="chapter " data-level="1.5.3" data-path="../chapter4/4.3HarmonyOSNEXT.html">
            
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                    5.3 HarmonyOS NEXT
            
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        <li class="chapter " data-level="1.5.4" data-path="../chapter4/4.4ArkTS语言_.html">
            
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                    5.4 ArkTS语言
            
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        <li class="chapter " data-level="1.5.5" data-path="../chapter4/4.5三者的差异.html">
            
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                    5.5 三者的区别与联系
            
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        <li class="chapter " data-level="1.5.6" data-path="../chapter4/4.6从开发者视角看_uniapp_与_Flutter_的差异.html">
            
                <a href="../chapter4/4.6从开发者视角看_uniapp_与_Flutter_的差异.html">
            
                    
                    5.6 从开发者视角看uniapp与Flutter的差异
            
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        <li class="chapter " data-level="1.6" data-path="../chapter5/">
            
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                    6.鸿蒙Flutter开发环境配置
            
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        <li class="chapter " data-level="1.6.1" data-path="../chapter5/5.1windows环境配置.html">
            
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                    6.1 Windows环境配置
            
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        <li class="chapter " data-level="1.6.2" data-path="../chapter5/5.2mac环境配置.md">
            
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                    6.2 Mac环境配置
            
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        <li class="chapter " data-level="1.6.3" data-path="../chapter5/5.2mac环境配置3.32.html">
            
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                    6.3 Mac环境配置3.32版本
            
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        <li class="chapter " data-level="1.6.4" data-path="../chapter5/5.3使用_FlutterSDK_3.22.1.html">
            
                <a href="../chapter5/5.3使用_FlutterSDK_3.22.1.html">
            
                    
                    6.4 使用FlutterSDK 3.22.1
            
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        <li class="chapter " data-level="1.6.5" data-path="../chapter5/5.4第一个鸿蒙Flutter应用程序.html">
            
                <a href="../chapter5/5.4第一个鸿蒙Flutter应用程序.html">
            
                    
                    6.5 第一个鸿蒙Flutter应用程序
            
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        <li class="chapter " data-level="1.6.6" data-path="../chapter5/5.5鸿蒙Flutter运行到多平台.html">
            
                <a href="../chapter5/5.5鸿蒙Flutter运行到多平台.html">
            
                    
                    6.6 运行到多平台
            
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        <li class="chapter " data-level="1.6.7" data-path="../chapter5/5.5Mac环境Java配置指南.html">
            
                <a href="../chapter5/5.5Mac环境Java配置指南.html">
            
                    
                    6.7 Mac环境Java配置指南
            
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        <li class="chapter " data-level="1.6.8" data-path="../chapter5/5.6使用最新的fluttersdk配置开发环境.html">
            
                <a href="../chapter5/5.6使用最新的fluttersdk配置开发环境.html">
            
                    
                    6.8 使用最新FlutterSDK配置开发环境
            
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        <li class="chapter " data-level="1.6.9" data-path="../chapter5/5.7OpenHarmony设备运行指导.html">
            
                <a href="../chapter5/5.7OpenHarmony设备运行指导.html">
            
                    
                    6.9 OpenHarmony设备运行指导
            
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        <li class="chapter " data-level="1.6.10" data-path="../chapter5/5.8现有项目支持鸿蒙.html">
            
                <a href="../chapter5/5.8现有项目支持鸿蒙.html">
            
                    
                    6.10 现有Flutter项目支持鸿蒙
            
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        <li class="chapter " data-level="1.6.11" data-path="../chapter5/5.9鸿蒙版Flutter仓库变更.html">
            
                <a href="../chapter5/5.9鸿蒙版Flutter仓库变更.html">
            
                    
                    6.11 鸿蒙版Flutter仓库变更
            
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        <li class="chapter " data-level="1.6.12" data-path="../chapter5/5.10真机与模拟器.html">
            
                <a href="../chapter5/5.10真机与模拟器.html">
            
                    
                    6.12 真机与模拟器
            
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        <li class="chapter " data-level="1.6.13" data-path="../chapter5/5.11使用fvm.html">
            
                <a href="../chapter5/5.11使用fvm.html">
            
                    
                    6.13 使用FVM管理
            
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        <li class="chapter " data-level="1.6.14" data-path="../chapter5/5.12Ma环境FVM安裝指南.html">
            
                <a href="../chapter5/5.12Ma环境FVM安裝指南.html">
            
                    
                    6.14 Mac环境FVM安装指南
            
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        <li class="chapter " data-level="1.6.15" data-path="../chapter5/5.12使用3.27.4构建鸿蒙应用.html">
            
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                    6.15 使用3.27.4构建鸿蒙应用
            
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        <li class="chapter " data-level="1.6.16" data-path="../chapter5/5.13使用_Flutter_SDK_3.27.4构建HarmonyOS应用.html">
            
                <a href="../chapter5/5.13使用_Flutter_SDK_3.27.4构建HarmonyOS应用.html">
            
                    
                    6.16 使用Flutter SDK 3.27.4构建HarmonyOS应用
            
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        <li class="chapter " data-level="1.6.17" data-path="../chapter5/5.14Flutter-OH版本演进规划和分支策略.html">
            
                <a href="../chapter5/5.14Flutter-OH版本演进规划和分支策略.html">
            
                    
                    6.17 Flutter-OH版本演进规划和分支策略
            
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        <li class="chapter " data-level="1.6.18" data-path="../chapter5/5.15mac环境配置3.22版本.html">
            
                <a href="../chapter5/5.15mac环境配置3.22版本.html">
            
                    
                    6.18 mac环境配置3.22版本
            
                </a>
            

            
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            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.7" data-path="../chapter6/">
            
                <a href="../chapter6/">
            
                    
                    7.在鸿蒙应用中添加Flutter页面
            
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        <li class="chapter " data-level="1.7.1" data-path="../chapter6/6.1如何使用FlutterPage.html">
            
                <a href="../chapter6/6.1如何使用FlutterPage.html">
            
                    
                    7.1 如何使用FlutterPage
            
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        <li class="chapter " data-level="1.7.2" data-path="../chapter6/6.2如何使用混合开发添加跳转_FlutterEntry.html">
            
                <a href="../chapter6/6.2如何使用混合开发添加跳转_FlutterEntry.html">
            
                    
                    7.2 如何使用混合开发添加跳转FlutterEntry
            
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        <li class="chapter " data-level="1.7.3" data-path="../chapter6/6.3在鸿蒙应用中添加Flutter页面.html">
            
                <a href="../chapter6/6.3在鸿蒙应用中添加Flutter页面.html">
            
                    
                    7.3 在鸿蒙应用中添加Flutter页面
            
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            </ul>
            
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        <li class="chapter " data-level="1.8" data-path="../chapter7/">
            
                <a href="../chapter7/">
            
                    
                    8.Flutter与HarmonyOS混合开发进阶
            
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        <li class="chapter " data-level="1.8.1" data-path="../chapter7/7.1如何使用_FlutterPage.md">
            
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                    8.1 如何使用FlutterPage
            
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        <li class="chapter " data-level="1.8.2" data-path="../chapter7/7.2如何使用混合开发添加跳转_FlutterEntry.md">
            
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                    8.2 如何使用混合开发添加跳转FlutterEntry
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.8.3" data-path="../chapter7/7.3_harmonyos添加flutter页面跳转时路由的处理.html">
            
                <a href="../chapter7/7.3_harmonyos添加flutter页面跳转时路由的处理.html">
            
                    
                    8.3 harmonyos添加flutter页面跳转时路由的处理
            
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        <li class="chapter " data-level="1.8.4" data-path="../chapter7/7.4使用FlutterChannel实现和Flutter和HarmonyOS交互.html">
            
                <a href="../chapter7/7.4使用FlutterChannel实现和Flutter和HarmonyOS交互.html">
            
                    
                    8.4 使用FlutterChannel实现和Flutter和HarmonyOS交互
            
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        <li class="chapter " data-level="1.9" data-path="./">
            
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                    9.在鸿蒙应用中使用Flutter Channel能力
            
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        <li class="chapter " data-level="1.9.1" data-path="8.1如何使用混合开发_module.html">
            
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                    9.1 如何使用混合开发module
            
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        <li class="chapter " data-level="1.9.2" data-path="8.2如何使用混合开发添加跳转_FlutterEntry.html">
            
                <a href="8.2如何使用混合开发添加跳转_FlutterEntry.html">
            
                    
                    9.2 如何使用混合开发添加跳转FlutterEntry
            
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        <li class="chapter " data-level="1.9.3" data-path="8.3如何使用lutter和鸿蒙next混合渲染.html">
            
                <a href="8.3如何使用lutter和鸿蒙next混合渲染.html">
            
                    
                    9.3 如何使用Flutter和鸿蒙NEXT混合渲染
            
                </a>
            

            
        </li>
    
        <li class="chapter active" data-level="1.9.4" data-path="8.4_混合渲染开发实践:以scan_三方库为例.html">
            
                <a href="8.4_混合渲染开发实践:以scan_三方库为例.html">
            
                    
                    9.4 混合渲染开发实践：以fluttertpc_scan三方库为例
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.5" data-path="8.5如何使用Flutter与鸿蒙通信_FlutterChannel.html">
            
                <a href="8.5如何使用Flutter与鸿蒙通信_FlutterChannel.html">
            
                    
                    9.5 如何使用Flutter与鸿蒙通信FlutterChannel
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.6" data-path="8.7Har包模式引入.html">
            
                <a href="8.7Har包模式引入.html">
            
                    
                    9.6 Har包模式引入
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.7" data-path="8.7源码模式引入.html">
            
                <a href="8.7源码模式引入.html">
            
                    
                    9.7 源码模式引入
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.8" data-path="8.8初始化Flutter.html">
            
                <a href="8.8初始化Flutter.html">
            
                    
                    9.8 初始化Flutter
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.9" data-path="8.9跳转Flutter页面.html">
            
                <a href="8.9跳转Flutter页面.html">
            
                    
                    9.9 跳转Flutter页面
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.10" data-path="../chapter9/">
            
                <a href="../chapter9/">
            
                    
                    10.与原生混合渲染
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.10.1" data-path="../chapter9/9.1flutter鸿蒙化背景.html">
            
                <a href="../chapter9/9.1flutter鸿蒙化背景.html">
            
                    
                    10.1 Flutter鸿蒙化背景
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.10.2" data-path="../chapter9/9.1外接纹理适配.html">
            
                <a href="../chapter9/9.1外接纹理适配.html">
            
                    
                    10.2 Flutter OHOS外接纹理适配简介
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.10.3" data-path="../chapter9/9.2如何使用多引擎_FlutterEngineGroup.html">
            
                <a href="../chapter9/9.2如何使用多引擎_FlutterEngineGroup.html">
            
                    
                    10.3 如何使用多引擎FlutterEngineGroup
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.10.4" data-path="../chapter9/9.3如何使用PlatformView.html">
            
                <a href="../chapter9/9.3如何使用PlatformView.html">
            
                    
                    10.4 如何使用PlatformView
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.10.5" data-path="../chapter9/9.4PlatformView同层渲染方案适配切换指导.html">
            
                <a href="../chapter9/9.4PlatformView同层渲染方案适配切换指导.html">
            
                    
                    10.5 PlatformView同层渲染方案适配切换指导
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.11" data-path="../chapter10/">
            
                <a href="../chapter10/">
            
                    
                    11.开发Flutter静态库
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.11.1" data-path="../chapter10/10.1开发module.html">
            
                <a href="../chapter10/10.1开发module.html">
            
                    
                    11.1开发module
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.2" data-path="../chapter10/10.2开发package.html">
            
                <a href="../chapter10/10.2开发package.html">
            
                    
                    11.2开发package
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.3" data-path="../chapter10/10.3开发plugin.html">
            
                <a href="../chapter10/10.3开发plugin.html">
            
                    
                    11.3开发plugin
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.4" data-path="../chapter10/10.4开发FFI_plugin.html">
            
                <a href="../chapter10/10.4开发FFI_plugin.html">
            
                    
                    11.4开发FFI plugin
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.12" data-path="../chapter11/">
            
                <a href="../chapter11/">
            
                    
                    12.Packages使用指南
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.12.1" data-path="../chapter11/11.1高效使用_Packages指南.html">
            
                <a href="../chapter11/11.1高效使用_Packages指南.html">
            
                    
                    12.1高效使用Packages指南
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.12.2" data-path="../chapter11/11.2发布Packages.html">
            
                <a href="../chapter11/11.2发布Packages.html">
            
                    
                    12.2发布Packages
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.12.3" data-path="../chapter11/11.3使用fvm管理.html">
            
                <a href="../chapter11/11.3使用fvm管理.html">
            
                    
                    12.3使用fvm管理
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.13" data-path="../chapter12/">
            
                <a href="../chapter12/">
            
                    
                    13.鸿蒙适配Flutter三方库
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.13.1" data-path="../chapter12/12.1纯dart库无需迁移.html">
            
                <a href="../chapter12/12.1纯dart库无需迁移.html">
            
                    
                    13.1纯dart库无需迁移
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.2" data-path="../chapter12/12.2坚果派已适配的库.html">
            
                <a href="../chapter12/12.2坚果派已适配的库.html">
            
                    
                    13.2坚果派目前适配三方库进展
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.3" data-path="../chapter12/12.3适配三方库之FlutterToast.html">
            
                <a href="../chapter12/12.3适配三方库之FlutterToast.html">
            
                    
                    13.3适配三方库之FlutterToast
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.4" data-path="../chapter12/12.4适配三方库之udid.html">
            
                <a href="../chapter12/12.4适配三方库之udid.html">
            
                    
                    13.4适配三方库之udid
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.5" data-path="../chapter12/12.5适配torch_light.html">
            
                <a href="../chapter12/12.5适配torch_light.html">
            
                    
                    13.5适配torch_light
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.6" data-path="../chapter12/12.6适配flutter_native_contact_picker.html">
            
                <a href="../chapter12/12.6适配flutter_native_contact_picker.html">
            
                    
                    13.6适配flutter_native_contact_picker
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.7" data-path="../chapter12/12.7适配flutter_timezone.html">
            
                <a href="../chapter12/12.7适配flutter_timezone.html">
            
                    
                    13.7适配flutter_timezone
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.8" data-path="../chapter12/12.8适配flutter_exit_app.html">
            
                <a href="../chapter12/12.8适配flutter_exit_app.html">
            
                    
                    13.8适配flutter_exit_app
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.9" data-path="../chapter12/12.9适配flutter_phone_direct_caller.html">
            
                <a href="../chapter12/12.9适配flutter_phone_direct_caller.html">
            
                    
                    13.9适配flutter_phone_direct_caller
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.10" data-path="../chapter12/12.10适配flutter_app_icon_badge.html">
            
                <a href="../chapter12/12.10适配flutter_app_icon_badge.html">
            
                    
                    13.10适配flutter_app_icon_badge
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.11" data-path="../chapter12/12.10适配screen_capture_event.html">
            
                <a href="../chapter12/12.10适配screen_capture_event.html">
            
                    
                    13.11适配screen_capture_event
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.12" data-path="../chapter12/12.10适配screenshot_callback.html">
            
                <a href="../chapter12/12.10适配screenshot_callback.html">
            
                    
                    13.12适配screenshot_callback
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.13" data-path="../chapter12/12.11适配memory_info.html">
            
                <a href="../chapter12/12.11适配memory_info.html">
            
                    
                    13.13适配memory_info
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.14" data-path="../chapter12/12.11适配screen_brightness.html">
            
                <a href="../chapter12/12.11适配screen_brightness.html">
            
                    
                    13.14适配screen_brightness
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.15" data-path="../chapter12/12.12适配battey_level_plus.html">
            
                <a href="../chapter12/12.12适配battey_level_plus.html">
            
                    
                    13.15适配battey_level_plus
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.16" data-path="../chapter12/12.13适配flutter_badge_plus.html">
            
                <a href="../chapter12/12.13适配flutter_badge_plus.html">
            
                    
                    13.16适配flutter_badge_plus
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.17" data-path="../chapter12/12.14适配flutter_native_contact_picker_plus.html">
            
                <a href="../chapter12/12.14适配flutter_native_contact_picker_plus.html">
            
                    
                    13.17适配flutter_native_contact_picker_plus
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.18" data-path="../chapter12/12.15获取设备随机存取存储器_(RAM">
            
                <span>
            
                    
                    13.18获取设备随机存取存储器 (RAM) 大小
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.19" data-path="../chapter12/12.16适配system_info_plus.html">
            
                <a href="../chapter12/12.16适配system_info_plus.html">
            
                    
                    13.19适配system_info_plus
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.20" data-path="../chapter12/12.17适配app_badge_plus.html">
            
                <a href="../chapter12/12.17适配app_badge_plus.html">
            
                    
                    13.20适配app_badge_plus
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.21" data-path="../chapter12/12.18适配flutter_native_contact_picker_plus.md">
            
                <span>
            
                    
                    13.21适配flutter_native_contact_picker_plus
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.22" data-path="../chapter12/12.19device_info_plus插件适配.html">
            
                <a href="../chapter12/12.19device_info_plus插件适配.html">
            
                    
                    13.22device_info_plus插件适配
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.23" data-path="../chapter12/12.20package_info_plus.html">
            
                <a href="../chapter12/12.20package_info_plus.html">
            
                    
                    13.23package_info_plus
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.24" data-path="../chapter12/12.21NetworkInfo适配.html">
            
                <a href="../chapter12/12.21NetworkInfo适配.html">
            
                    
                    13.24NetworkInfo适配
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.25" data-path="../chapter12/12.22url_luacher适配指南.html">
            
                <a href="../chapter12/12.22url_luacher适配指南.html">
            
                    
                    13.25url_luacher适配指南
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.26" data-path="../chapter12/di.html">
            
                <a href="../chapter12/di.html">
            
                    
                    13.26依赖注入
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.14" data-path="../chapter13/">
            
                <a href="../chapter13/">
            
                    
                    14.性能优化与调试
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.14.1" data-path="../chapter13/13.1环境配置.html">
            
                <a href="../chapter13/13.1环境配置.html">
            
                    
                    14.1 环境配置
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.2" data-path="../chapter13/13.2Flutter_开发鸿蒙应用时三方库引入指南.html">
            
                <a href="../chapter13/13.2Flutter_开发鸿蒙应用时三方库引入指南.html">
            
                    
                    14.2 Flutter开发鸿蒙应用时三方库引入指南
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.3" data-path="../chapter13/13.2性能分析定界指南.html">
            
                <a href="../chapter13/13.2性能分析定界指南.html">
            
                    
                    14.3 性能分析定界指南
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.4" data-path="../chapter13/13.3梳理线程顺序.html">
            
                <a href="../chapter13/13.3梳理线程顺序.html">
            
                    
                    14.4 性能分析第一步-梳理线程顺序
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.5" data-path="../chapter13/13.4滑动响应时延.html">
            
                <a href="../chapter13/13.4滑动响应时延.html">
            
                    
                    14.5 性能分析-滑动响应时延
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.6" data-path="../chapter13/13.5帧渲染跟踪.html">
            
                <a href="../chapter13/13.5帧渲染跟踪.html">
            
                    
                    14.6 性能分析-帧渲染跟踪
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.7" data-path="../chapter13/13.6如何调试代码.html">
            
                <a href="../chapter13/13.6如何调试代码.html">
            
                    
                    14.7 如何调试代码
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.8" data-path="../chapter13/13.7在_Flutter_中实现鸿蒙平台引入_package，其他平台排除.html">
            
                <a href="../chapter13/13.7在_Flutter_中实现鸿蒙平台引入_package，其他平台排除.html">
            
                    
                    14.8 在Flutter中实现鸿蒙平台引入package，其他平台排除
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.9" data-path="../chapter13/运行.html">
            
                <a href="../chapter13/运行.html">
            
                    
                    14.9 运行
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.15" data-path="../chapter14/">
            
                <a href="../chapter14/">
            
                    
                    15.迁移实战
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.15.1" data-path="../chapter14/14.1拨打电话.html">
            
                <a href="../chapter14/14.1拨打电话.html">
            
                    
                    15.1 拨打电话
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.2" data-path="../chapter14/14.2使用url_launcher.html">
            
                <a href="../chapter14/14.2使用url_launcher.html">
            
                    
                    15.2 使用url_launcher
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.3" data-path="../chapter14/14.3flutter开发鸿蒙PC应用.html">
            
                <a href="../chapter14/14.3flutter开发鸿蒙PC应用.html">
            
                    
                    15.3 flutter开发鸿蒙PC应用
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4" data-path="../chapter14/14.4探索适用于鸿蒙原生应用的跨平台开发框架.html">
            
                <a href="../chapter14/14.4探索适用于鸿蒙原生应用的跨平台开发框架.html">
            
                    
                    15.4 探索适用于鸿蒙原生应用的跨平台开发框架
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.5" data-path="../chapter14/14.5保存图片.html">
            
                <a href="../chapter14/14.5保存图片.html">
            
                    
                    15.5 保存图片
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.6" data-path="../chapter14/14.6使用url.html">
            
                <a href="../chapter14/14.6使用url.html">
            
                    
                    15.6 使用url
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.7" data-path="../chapter14/今日时鉴.html">
            
                <a href="../chapter14/今日时鉴.html">
            
                    
                    15.7 今日时鉴
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.16" data-path="../chapter15/">
            
                <a href="../chapter15/">
            
                    
                    16.上架审核
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.16.1" data-path="../chapter15/15.1应用上架流程.html">
            
                <a href="../chapter15/15.1应用上架流程.html">
            
                    
                    16.1应用上架流程
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.16.2" data-path="../chapter15/15.2审核注意事项.html">
            
                <a href="../chapter15/15.2审核注意事项.html">
            
                    
                    16.2审核注意事项
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.17" data-path="../chapter16/">
            
                <a href="../chapter16/">
            
                    
                    17.FAQ
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.17.1" data-path="../chapter16/16.1ohos应用编译相关问题.html">
            
                <a href="../chapter16/16.1ohos应用编译相关问题.html">
            
                    
                    17.1 ohos应用编译相关问题
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.17.2" data-path="../chapter16/16.2原有项目迁移鸿蒙.html">
            
                <a href="../chapter16/16.2原有项目迁移鸿蒙.html">
            
                    
                    17.2 原有项目迁移鸿蒙
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.17.3" data-path="../chapter16/16.3权限相关.html">
            
                <a href="../chapter16/16.3权限相关.html">
            
                    
                    17.3 权限相关
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.17.4" data-path="../chapter16/16.4Flutter_3.22.0-ohos_0.1.0_Release发布.html">
            
                <a href="../chapter16/16.4Flutter_3.22.0-ohos_0.1.0_Release发布.html">
            
                    
                    17.4 Flutter 3.22.0-ohos 0.1.0 Release发布
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.17.5" data-path="../chapter16/16.5环境相关问题.html">
            
                <a href="../chapter16/16.5环境相关问题.html">
            
                    
                    17.5 环境相关问题
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.17.6" data-path="../chapter16/16.6ohos代码开发相关问题.html">
            
                <a href="../chapter16/16.6ohos代码开发相关问题.html">
            
                    
                    17.6 ohos代码开发相关问题
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.17.7" data-path="../chapter16/16.7解析flutter相关的cppcrash堆栈.html">
            
                <a href="../chapter16/16.7解析flutter相关的cppcrash堆栈.html">
            
                    
                    17.7 解析flutter相关的cppcrash堆栈
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.17.8" data-path="../chapter16/16.8ohos引擎产物编译相关问题.html">
            
                <a href="../chapter16/16.8ohos引擎产物编译相关问题.html">
            
                    
                    17.8 ohos引擎产物编译相关问题
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.17.9" data-path="../chapter16/ffi.html">
            
                <a href="../chapter16/ffi.html">
            
                    
                    17.9 FFI
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.17.10" data-path="../chapter16/三方库相关.html">
            
                <a href="../chapter16/三方库相关.html">
            
                    
                    17.10 三方库相关
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.18" data-path="../chapter17/">
            
                <a href="../chapter17/">
            
                    
                    18.阅读更多
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.18.1" data-path="../chapter17/17.1版本.html">
            
                <a href="../chapter17/17.1版本.html">
            
                    
                    18.1 适配HarmonyOS Next API16的鸿蒙版Flutter 3.22.0版本发布
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.18.2" data-path="../chapter17/17.2平台判断与问题处理指南.html">
            
                <a href="../chapter17/17.2平台判断与问题处理指南.html">
            
                    
                    18.2 平台判断与问题处理指南
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.18.3" data-path="../chapter17/17.3鸿蒙版Flutter_3.22.0版本正式发布(1.0Release">
            
                <span>
            
                    
                    18.3 鸿蒙版Flutter 3.22.0版本正式发布(1.0Release)
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.18.4" data-path="../chapter17/17.4优化_ohos_构建过程.html">
            
                <a href="../chapter17/17.4优化_ohos_构建过程.html">
            
                    
                    18.4 优化ohos构建过程
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.18.5" data-path="../chapter17/17.5新增use-application-binary命令.html">
            
                <a href="../chapter17/17.5新增use-application-binary命令.html">
            
                    
                    18.5 新增use-application-binary命令
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.18.6" data-path="../chapter17/17.6Flutter_3.22.0-ohos_1.0.1_Release发布.md">
            
                <span>
            
                    
                    18.6 Flutter 3.22.0-ohos 1.0.1 Release发布
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.18.7" data-path="../chapter17/17.7关于插件参数传递.html">
            
                <a href="../chapter17/17.7关于插件参数传递.html">
            
                    
                    18.7 关于插件参数传递
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.18.8" data-path="../chapter17/17.8关于鸿蒙版Flutter的_context_.html">
            
                <a href="../chapter17/17.8关于鸿蒙版Flutter的_context_.html">
            
                    
                    18.8 关于鸿蒙版Flutter的context
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.18.9" data-path="../chapter17/5.1API_18正式发布.html">
            
                <a href="../chapter17/5.1API_18正式发布.html">
            
                    
                    18.9 5.1API 18正式发布
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.18.10" data-path="../chapter17/5.1完整.html">
            
                <a href="../chapter17/5.1完整.html">
            
                    
                    18.10 5.1完整
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.19" data-path="../chapter18/">
            
                <a href="../chapter18/">
            
                    
                    19.多设备能力
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.19.1" data-path="../chapter18/18.1多设备自适应布局.html">
            
                <a href="../chapter18/18.1多设备自适应布局.html">
            
                    
                    19.1 自适应布局
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.19.2" data-path="../chapter18/18.2多设备响应式布局.html">
            
                <a href="../chapter18/18.2多设备响应式布局.html">
            
                    
                    19.2 响应式布局
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.19.3" data-path="../chapter18/18.3多设备典型布局场景.html">
            
                <a href="../chapter18/18.3多设备典型布局场景.html">
            
                    
                    19.3 典型布局场景
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.19.4" data-path="../chapter18/18.4交互归一能力.html">
            
                <a href="../chapter18/18.4交互归一能力.html">
            
                    
                    19.4 交互归一能力
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.20" data-path="../chapter19/README.md">
            
                <span>
            
                    
                    20.关于未来
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.21" data-path="../chapter20/">
            
                <a href="../chapter20/">
            
                    
                    21.版本更新
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.21.1" data-path="../chapter20/20.1鸿蒙版Flutter_3.22.0版本正式发布(1.0Release">
            
                <span>
            
                    
                    21.1 鸿蒙版Flutter 3.22.0版本正式发布(1.0Release)
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.21.2" data-path="../chapter20/20.2Flutter_3.22.0-ohos_1.0.1_Release发布.html">
            
                <a href="../chapter20/20.2Flutter_3.22.0-ohos_1.0.1_Release发布.html">
            
                    
                    21.2 Flutter 3.22.0-ohos 1.0.1 Release发布
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.21.3" data-path="../chapter20/20.3发布新版本.html">
            
                <a href="../chapter20/20.3发布新版本.html">
            
                    
                    21.3 发布新版本
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.21.4" data-path="../chapter20/20.4Flutter3.22.0-ohos-1.0.4发布.html">
            
                <a href="../chapter20/20.4Flutter3.22.0-ohos-1.0.4发布.html">
            
                    
                    21.4 Flutter3.22.0-ohos-1.0.4发布
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.21.5" data-path="../chapter20/20.5如何升级插件升级最新的鸿蒙版_flutter.html">
            
                <a href="../chapter20/20.5如何升级插件升级最新的鸿蒙版_flutter.html">
            
                    
                    21.5 如何升级插件升级最新的鸿蒙版flutter
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.21.6" data-path="../chapter20/20.6各版本的鸿蒙版flutter如何获取.html">
            
                <a href="../chapter20/20.6各版本的鸿蒙版flutter如何获取.html">
            
                    
                    21.6 各版本的鸿蒙版flutter如何获取
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.21.7" data-path="../chapter20/20.7新版本发布.html">
            
                <a href="../chapter20/20.7新版本发布.html">
            
                    
                    21.7 新版本发布
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.22" data-path="../致谢.html">
            
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                    致谢
            
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             <h1 id="&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x5F00;&#x53D1;&#x5B9E;&#x8DF5;&#xFF1A;&#x4EE5;-scan-&#x4E09;&#x65B9;&#x5E93;&#x4E3A;&#x4F8B;">&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x5F00;&#x53D1;&#x5B9E;&#x8DF5;&#xFF1A;&#x4EE5; scan &#x4E09;&#x65B9;&#x5E93;&#x4E3A;&#x4F8B;</h1>
<h2 id="&#x1F4CB;-&#x76EE;&#x5F55;">&#x1F4CB; &#x76EE;&#x5F55;</h2>
<ul>
<li><a href="#&#x80CC;&#x666F;&#x4E0E;&#x4EF7;&#x503C;">&#x80CC;&#x666F;&#x4E0E;&#x4EF7;&#x503C;</a></li>
<li><a href="#&#x73AF;&#x5883;&#x914D;&#x7F6E;">&#x73AF;&#x5883;&#x914D;&#x7F6E;</a></li>
<li><a href="#&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x5B9E;&#x73B0;">&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x5B9E;&#x73B0;</a></li>
<li><a href="#&#x5173;&#x952E;&#x6280;&#x672F;&#x70B9;&#x8BB2;&#x89E3;">&#x5173;&#x952E;&#x6280;&#x672F;&#x70B9;&#x8BB2;&#x89E3;</a></li>
<li><a href="#flutter-&#x7AEF;&#x4F7F;&#x7528;">Flutter &#x7AEF;&#x4F7F;&#x7528;</a></li>
<li><a href="#&#x603B;&#x7ED3;">&#x603B;&#x7ED3;</a></li>
</ul>
<hr>
<h2 id="&#x1F3AF;-&#x80CC;&#x666F;&#x4E0E;&#x4EF7;&#x503C;">&#x1F3AF; &#x80CC;&#x666F;&#x4E0E;&#x4EF7;&#x503C;</h2>
<p>&#x5728;&#x8DE8;&#x5E73;&#x53F0;&#x5F00;&#x53D1;&#x4E2D;&#xFF0C;Flutter &#x4EE5;&#x5176;&#x9AD8;&#x6548;&#x7684; UI &#x6784;&#x5EFA;&#x80FD;&#x529B;&#x8457;&#x79F0;&#xFF0C;&#x800C;&#x9E3F;&#x8499; Next&#xFF08;OpenHarmony&#xFF09;&#x5219;&#x63D0;&#x4F9B;&#x4E86;&#x6DF1;&#x5EA6;&#x7CFB;&#x7EDF;&#x96C6;&#x6210;&#x7684;&#x539F;&#x751F;&#x80FD;&#x529B;&#x3002;&#x5C06;&#x4E24;&#x8005;&#x7ED3;&#x5408;&#xFF0C;&#x53EF;&#x5B9E;&#x73B0; <strong>UI &#x8DE8;&#x5E73;&#x53F0; + &#x539F;&#x751F;&#x529F;&#x80FD;&#x6DF1;&#x5EA6;&#x878D;&#x5408;</strong> &#x7684;&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x6A21;&#x5F0F;&#x3002;</p>
<p>&#x672C;&#x6587;&#x4EE5;&#x626B;&#x63CF;&#x5E93; <a href="https://gitcode.com/nutpi/fluttertpc_scan" target="_blank">fluttertpc_scan</a> &#x4E3A;&#x4F8B;&#xFF0C;&#x8BE6;&#x89E3;&#x6DF7;&#x5408;&#x5F00;&#x53D1;&#x7684;&#x6838;&#x5FC3;&#x6D41;&#x7A0B;&#x3002;</p>
<h3 id="&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x4F18;&#x52BF;">&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x4F18;&#x52BF;</h3>
<table>
<thead>
<tr>
<th>&#x7279;&#x6027;</th>
<th>Flutter</th>
<th>&#x9E3F;&#x8499;&#x539F;&#x751F;</th>
<th>&#x6DF7;&#x5408;&#x6E32;&#x67D3;</th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>UI &#x4E00;&#x81F4;&#x6027;</strong></td>
<td>&#x2705; &#x8DE8;&#x5E73;&#x53F0;&#x7EDF;&#x4E00;</td>
<td>&#x274C; &#x5E73;&#x53F0;&#x7279;&#x5B9A;</td>
<td>&#x2705; &#x7EDF;&#x4E00; UI + &#x539F;&#x751F;&#x529F;&#x80FD;</td>
</tr>
<tr>
<td><strong>&#x6027;&#x80FD;&#x8868;&#x73B0;</strong></td>
<td>&#x2705; &#x9AD8;&#x6027;&#x80FD;&#x6E32;&#x67D3;</td>
<td>&#x2705; &#x539F;&#x751F;&#x6027;&#x80FD;</td>
<td>&#x2705; &#x6700;&#x4F73;&#x6027;&#x80FD;</td>
</tr>
<tr>
<td><strong>&#x7CFB;&#x7EDF;&#x96C6;&#x6210;</strong></td>
<td>&#x1F538; &#x6709;&#x9650;&#x96C6;&#x6210;</td>
<td>&#x2705; &#x6DF1;&#x5EA6;&#x96C6;&#x6210;</td>
<td>&#x2705; &#x6DF1;&#x5EA6;&#x7CFB;&#x7EDF;&#x96C6;&#x6210;</td>
</tr>
<tr>
<td><strong>&#x5F00;&#x53D1;&#x6548;&#x7387;</strong></td>
<td>&#x2705; &#x5FEB;&#x901F;&#x5F00;&#x53D1;</td>
<td>&#x1F538; &#x5E73;&#x53F0;&#x7279;&#x5B9A;</td>
<td>&#x2705; &#x9AD8;&#x6548;&#x5F00;&#x53D1;</td>
</tr>
</tbody>
</table>
<hr>
<h2 id="&#x2699;&#xFE0F;-&#x73AF;&#x5883;&#x914D;&#x7F6E;">&#x2699;&#xFE0F; &#x73AF;&#x5883;&#x914D;&#x7F6E;</h2>
<h3 id="&#x5DE5;&#x5177;&#x94FE;&#x7248;&#x672C;&#x8981;&#x6C42;">&#x5DE5;&#x5177;&#x94FE;&#x7248;&#x672C;&#x8981;&#x6C42;</h3>
<table>
<thead>
<tr>
<th>&#x5DE5;&#x5177;</th>
<th>&#x6700;&#x4F4E;&#x7248;&#x672C;</th>
<th>&#x5907;&#x6CE8;</th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>Flutter SDK</strong></td>
<td>3.19.0+</td>
<td>&#x652F;&#x6301; OHOS &#x7684; Flutter SDK</td>
</tr>
<tr>
<td><strong>DevEco Studio</strong></td>
<td>5.0.1 Release</td>
<td>&#x9700;&#x914D;&#x7F6E; OpenHarmony 5.0+ SDK</td>
</tr>
</tbody>
</table>
<h3 id="&#x73AF;&#x5883;&#x9A8C;&#x8BC1;">&#x73AF;&#x5883;&#x9A8C;&#x8BC1;</h3>
<pre><code class="lang-bash"><span class="hljs-comment"># &#x9A8C;&#x8BC1; Flutter &#x73AF;&#x5883;</span>
flutter doctor -v

<span class="hljs-comment"># &#x786E;&#x8BA4;&#x9E3F;&#x8499; SDK &#x8DEF;&#x5F84;</span>
<span class="hljs-comment"># DevEco Studio &#x2192; File &#x2192; Settings &#x2192; SDK Manager &#x2192; OpenHarmony SDK</span>
</code></pre>
<h3 id="&#x9879;&#x76EE;&#x4F9D;&#x8D56;">&#x9879;&#x76EE;&#x4F9D;&#x8D56;</h3>
<pre><code class="lang-yaml"><span class="hljs-comment"># pubspec.yaml</span>
<span class="hljs-attr">dependencies:</span>
<span class="hljs-attr">  flutter:</span>
<span class="hljs-attr">    sdk:</span> flutter
<span class="hljs-attr">  fluttertpc_scan:</span> ^<span class="hljs-number">1.0</span><span class="hljs-number">.0</span>  <span class="hljs-comment"># &#x626B;&#x63CF;&#x5E93;&#x4F9D;&#x8D56;</span>
</code></pre>
<hr>
<h2 id="&#x1F3D7;&#xFE0F;-&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x5B9E;&#x73B0;">&#x1F3D7;&#xFE0F; &#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x5B9E;&#x73B0;</h2>
<h3 id="1-&#x9E3F;&#x8499;&#x539F;&#x751F;&#x6A21;&#x5757;&#x5F00;&#x53D1;">1. &#x9E3F;&#x8499;&#x539F;&#x751F;&#x6A21;&#x5757;&#x5F00;&#x53D1;</h3>
<h4 id="11-&#x4E8C;&#x7EF4;&#x7801;&#x626B;&#x63CF;&#x7EC4;&#x4EF6;&#x5C01;&#x88C5;">1.1 &#x4E8C;&#x7EF4;&#x7801;&#x626B;&#x63CF;&#x7EC4;&#x4EF6;&#x5C01;&#x88C5;</h4>
<pre><code class="lang-typescript">@Component
<span class="hljs-keyword">export</span> struct CustomScanPage {
  @StorageLink(CameraConstants.CUSTOM_SCAN_PAGE_IS_BACKGROUND_NAME)
  @Watch(<span class="hljs-string">&apos;onBackgroundUpdate&apos;</span>) isBackground: <span class="hljs-built_in">boolean</span> = <span class="hljs-literal">false</span>;

  @State params: Map&lt;<span class="hljs-built_in">String</span>, <span class="hljs-built_in">Object</span>&gt; | <span class="hljs-literal">null</span> = <span class="hljs-literal">null</span>
  @State customScanVM: CustomScanViewModel = CustomScanViewModel.getInstance();
  <span class="hljs-keyword">private</span> mXComponentController: XComponentController = <span class="hljs-keyword">new</span> XComponentController();
  @State scanLineColor: <span class="hljs-built_in">string</span> = <span class="hljs-string">&quot;#ff4caf50&quot;</span>
  <span class="hljs-keyword">private</span> mScale: <span class="hljs-built_in">number</span> = <span class="hljs-number">1.0</span>
  @State animationOrdinate: <span class="hljs-built_in">number</span> = CameraConstants.SCAN_DIVIDER_OFFSET_BEGIN
  @State pauseScan: <span class="hljs-built_in">boolean</span> = <span class="hljs-literal">false</span>
  args?: Params

  build() {
    Column() {
      Stack() {
        <span class="hljs-comment">// &#x76F8;&#x673A;&#x9884;&#x89C8;&#x7EC4;&#x4EF6;</span>
        XComponent({
          id: CameraConstants.CAMERA_COMPONENT_ID,
          <span class="hljs-keyword">type</span>: CameraConstants.CAMERA_COMPONENT_TYPE,
          controller: <span class="hljs-keyword">this</span>.mXComponentController
        })
          .onLoad(() =&gt; {
            Log.i(TAG, <span class="hljs-string">&apos;XComponent onLoad&apos;</span>)
            <span class="hljs-keyword">this</span>.customScanStart()
          })
          .width(<span class="hljs-keyword">this</span>.customScanVM.cameraCompWidth)
          .height(<span class="hljs-keyword">this</span>.customScanVM.cameraCompHeight)
          .position({
            x: CameraConstants.SCAN_COMPONENT_POSITION_X,
            y: CameraConstants.SCAN_COMPONENT_POSITION_Y
          })

        <span class="hljs-comment">// &#x626B;&#x63CF;&#x8FB9;&#x6846;</span>
        <span class="hljs-keyword">this</span>.ScanBorder()
      }
      .alignContent(Alignment.Center)
      .height(CameraConstants.SCAN_COMPONENT_WIDTH_100)
      .width(CameraConstants.SCAN_COMPONENT_WIDTH_100)
      .position({
        x: CameraConstants.SCAN_COMPONENT_POSITION_X,
        y: CameraConstants.SCAN_COMPONENT_POSITION_Y
      })
      .backgroundColor(Color.Grey)
    }
    .height(CameraConstants.SCAN_COMPONENT_WIDTH_100)
    .width(CameraConstants.SCAN_COMPONENT_WIDTH_100)
    .alignItems(HorizontalAlign.Center)
    .justifyContent(FlexAlign.Center)
    .backgroundColor(Color.White)
  }

  aboutToAppear(): <span class="hljs-built_in">void</span> {
    Log.i(TAG, <span class="hljs-string">&apos;aboutToAppear&apos;</span>)
    <span class="hljs-keyword">this</span>.initParams()

    <span class="hljs-comment">// &#x6CE8;&#x518C; XComponent &#x5C3A;&#x5BF8;&#x4FEE;&#x6539;&#x56DE;&#x8C03;</span>
    <span class="hljs-keyword">this</span>.customScanVM.regXCompSizeUpdateListener((width: <span class="hljs-built_in">number</span>, height: <span class="hljs-built_in">number</span>) =&gt; {
      <span class="hljs-keyword">this</span>.updateCameraSurfaceSize(width, height);
    })

    <span class="hljs-comment">// &#x6CE8;&#x518C;&#x626B;&#x63CF;&#x72B6;&#x6001;&#x76D1;&#x542C;&#x56DE;&#x8C03;</span>
    <span class="hljs-keyword">this</span>.customScanVM.regScanStatusUpdateListener((isPause: <span class="hljs-built_in">boolean</span>) =&gt; {
      <span class="hljs-keyword">if</span> (!isPause) {
        setTimeout(() =&gt; {
          <span class="hljs-keyword">this</span>.pauseScan = isPause;
        }, <span class="hljs-number">500</span>);
      } <span class="hljs-keyword">else</span> {
        <span class="hljs-keyword">this</span>.pauseScan = isPause;
      }
    })
  }
}
</code></pre>
<h4 id="12-&#x63D2;&#x4EF6;&#x7F16;&#x5199;">1.2 &#x63D2;&#x4EF6;&#x7F16;&#x5199;</h4>
<pre><code class="lang-typescript"><span class="hljs-keyword">export</span> <span class="hljs-keyword">class</span> ScanPlugin <span class="hljs-keyword">implements</span> FlutterPlugin, MethodCallHandler, AbilityAware {
  <span class="hljs-keyword">private</span> channel: MethodChannel | <span class="hljs-literal">null</span> = <span class="hljs-literal">null</span>
  <span class="hljs-keyword">private</span> flutterPluginBinding: FlutterPluginBinding | <span class="hljs-literal">null</span> = <span class="hljs-literal">null</span>
  <span class="hljs-keyword">private</span> ability: UIAbility | <span class="hljs-literal">null</span> = <span class="hljs-literal">null</span>
  <span class="hljs-keyword">private</span> mainWindow: <span class="hljs-built_in">window</span>.Window | <span class="hljs-literal">null</span> = <span class="hljs-literal">null</span>;

  onAttachedToEngine(binding: FlutterPluginBinding): <span class="hljs-built_in">void</span> {
    Log.i(TAG, <span class="hljs-string">&apos;onAttachedToEngine&apos;</span>)
    <span class="hljs-keyword">this</span>.channel = <span class="hljs-keyword">new</span> MethodChannel(binding.getBinaryMessenger(), CHANNEL_NAME)
    <span class="hljs-keyword">this</span>.channel?.setMethodCallHandler(<span class="hljs-keyword">this</span>)
    <span class="hljs-keyword">this</span>.flutterPluginBinding = binding

    <span class="hljs-comment">// &#x6CE8;&#x518C;&#x5E73;&#x53F0;&#x89C6;&#x56FE;&#x5DE5;&#x5382;</span>
    binding.getPlatformViewRegistry()
      .registerViewFactory(CHANNEL_VIEW_NAME, <span class="hljs-keyword">new</span> ScanViewFactory(binding.getBinaryMessenger()))
  }

  onDetachedFromEngine(binding: FlutterPluginBinding): <span class="hljs-built_in">void</span> {
    Log.i(TAG, <span class="hljs-string">&apos;onDetachedFromEngine&apos;</span>)
    <span class="hljs-keyword">this</span>.channel?.setMethodCallHandler(<span class="hljs-literal">null</span>)
    <span class="hljs-keyword">this</span>.channel = <span class="hljs-literal">null</span>
  }

  onDetachedFromAbility(): <span class="hljs-built_in">void</span> {
    <span class="hljs-keyword">this</span>.ability = <span class="hljs-literal">null</span>
    <span class="hljs-keyword">this</span>.offWindowEvent()
  }

  onAttachedToAbility(binding: AbilityPluginBinding): <span class="hljs-built_in">void</span> {
    <span class="hljs-keyword">this</span>.ability = binding.getAbility()
  }

  onWindowEvent(context: Context) {
    <span class="hljs-keyword">try</span> {
      <span class="hljs-keyword">if</span> (<span class="hljs-keyword">this</span>.mainWindow == <span class="hljs-literal">null</span>) {
        <span class="hljs-keyword">this</span>.mainWindow = FlutterManager.getInstance()
          .getWindowStage(FlutterManager.getInstance().getUIAbility(context))
          .getMainWindowSync();
        <span class="hljs-keyword">this</span>.mainWindow?.on(<span class="hljs-string">&apos;windowEvent&apos;</span>, (data: <span class="hljs-built_in">window</span>.WindowEventType) =&gt; {
          <span class="hljs-keyword">if</span> (data === <span class="hljs-built_in">window</span>.WindowEventType.WINDOW_SHOWN) {
            AppStorage.setOrCreate(CameraConstants.CUSTOM_SCAN_PAGE_IS_BACKGROUND_NAME, <span class="hljs-literal">false</span>)
          } <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> (data === <span class="hljs-built_in">window</span>.WindowEventType.WINDOW_HIDDEN) {
            AppStorage.setOrCreate(CameraConstants.CUSTOM_SCAN_PAGE_IS_BACKGROUND_NAME, <span class="hljs-literal">true</span>)
          }
        });
      }
    } <span class="hljs-keyword">catch</span> (exception) {
      Log.e(TAG, <span class="hljs-string">&apos;Failed to register callback. Cause: &apos;</span> + <span class="hljs-built_in">JSON</span>.stringify(exception));
    }
  }

  offWindowEvent() {
    <span class="hljs-keyword">try</span> {
      <span class="hljs-keyword">this</span>.mainWindow?.off(<span class="hljs-string">&apos;windowEvent&apos;</span>);
    } <span class="hljs-keyword">catch</span> (exception) {
      Log.e(TAG, <span class="hljs-string">&apos;Failed to register callback. Cause: &apos;</span> + <span class="hljs-built_in">JSON</span>.stringify(exception));
    }
  }

  onMethodCall(call: MethodCall, result: MethodResult): <span class="hljs-built_in">void</span> {
    <span class="hljs-keyword">this</span>.onWindowEvent(<span class="hljs-keyword">this</span>.ability!.context)
    <span class="hljs-keyword">try</span> {
      <span class="hljs-keyword">switch</span> (call.method) {
        <span class="hljs-keyword">case</span> <span class="hljs-string">&quot;getPlatformVersion&quot;</span>:
          <span class="hljs-keyword">this</span>.getInfo(result)
          <span class="hljs-keyword">break</span>;
        <span class="hljs-keyword">case</span> <span class="hljs-string">&quot;parse&quot;</span>:
          <span class="hljs-keyword">this</span>.imgParse(call, result)
          <span class="hljs-keyword">break</span>;
        <span class="hljs-keyword">default</span>:
          result.notImplemented()
          <span class="hljs-keyword">break</span>;
      }
    } <span class="hljs-keyword">catch</span> (err) {
      Log.e(TAG, <span class="hljs-string">&apos;onMethodCall failed: &apos;</span> + err);
      result.error(<span class="hljs-string">&quot;BarcodeScanPlugin&quot;</span>, <span class="hljs-string">&quot;onMethodCall failed with err&quot;</span>, err);
    }
  }

  getUniqueClassName(): <span class="hljs-built_in">string</span> {
    Log.i(TAG, <span class="hljs-string">&apos;getUniqueClassName&apos;</span>)
    <span class="hljs-keyword">return</span> TAG
  }
}
</code></pre>
<h3 id="2-flutter-&#x7AEF;&#x96C6;&#x6210;">2. Flutter &#x7AEF;&#x96C6;&#x6210;</h3>
<h4 id="21-&#x63D2;&#x4EF6;&#x63A5;&#x53E3;&#x5B9A;&#x4E49;">2.1 &#x63D2;&#x4EF6;&#x63A5;&#x53E3;&#x5B9A;&#x4E49;</h4>
<pre><code class="lang-dart"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Scan</span> </span>{
  <span class="hljs-keyword">static</span> <span class="hljs-keyword">const</span> MethodChannel _channel = <span class="hljs-keyword">const</span> MethodChannel(<span class="hljs-string">&apos;chavesgu/scan&apos;</span>);

  <span class="hljs-keyword">static</span> Future&lt;<span class="hljs-built_in">String</span>&gt; <span class="hljs-keyword">get</span> platformVersion <span class="hljs-keyword">async</span> {
    <span class="hljs-keyword">final</span> <span class="hljs-built_in">String</span> version = <span class="hljs-keyword">await</span> _channel.invokeMethod(<span class="hljs-string">&apos;getPlatformVersion&apos;</span>);
    <span class="hljs-keyword">return</span> version;
  }

  <span class="hljs-keyword">static</span> Future&lt;<span class="hljs-built_in">String</span>?&gt; parse(<span class="hljs-built_in">String</span> path) <span class="hljs-keyword">async</span> {
    <span class="hljs-keyword">final</span> <span class="hljs-built_in">String</span>? result = <span class="hljs-keyword">await</span> _channel.invokeMethod(<span class="hljs-string">&apos;parse&apos;</span>, path);
    <span class="hljs-keyword">return</span> result;
  }
}

<span class="hljs-keyword">void</span> _onPlatformViewCreated(<span class="hljs-built_in">int</span> id) {
  _channel = MethodChannel(<span class="hljs-string">&apos;chavesgu/scan/method_$id&apos;</span>);
  _channel?.setMethodCallHandler((MethodCall call) <span class="hljs-keyword">async</span> {
    <span class="hljs-keyword">if</span> (call.method == <span class="hljs-string">&apos;onCaptured&apos;</span>) {
      <span class="hljs-keyword">if</span> (widget.onCapture != <span class="hljs-keyword">null</span>)
        widget.onCapture!(call.arguments.toString());
    }
  });
  widget.controller?._channel = _channel;
}
</code></pre>
<h4 id="22-&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x9875;&#x9762;">2.2 &#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x9875;&#x9762;</h4>
<pre><code class="lang-dart"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">_ScanViewState</span> <span class="hljs-keyword">extends</span> <span class="hljs-title">State</span>&lt;<span class="hljs-title">ScanView</span>&gt; </span>{
  MethodChannel? _channel;

  <span class="hljs-meta">@override</span>
  Widget build(BuildContext context) {
    <span class="hljs-keyword">if</span> (defaultTargetPlatform == TargetPlatform.iOS) {
      <span class="hljs-keyword">return</span> UiKitView(
        viewType: <span class="hljs-string">&apos;chavesgu/scan_view&apos;</span>,
        creationParamsCodec: StandardMessageCodec(),
        creationParams: {
          <span class="hljs-string">&quot;r&quot;</span>: widget.scanLineColor.red,
          <span class="hljs-string">&quot;g&quot;</span>: widget.scanLineColor.green,
          <span class="hljs-string">&quot;b&quot;</span>: widget.scanLineColor.blue,
          <span class="hljs-string">&quot;a&quot;</span>: widget.scanLineColor.opacity,
          <span class="hljs-string">&quot;scale&quot;</span>: widget.scanAreaScale,
        },
        onPlatformViewCreated: (id) {
          _onPlatformViewCreated(id);
        },
      );
    } <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> (defaultTargetPlatform == TargetPlatform.android) {
      <span class="hljs-keyword">return</span> AndroidView(
        viewType: <span class="hljs-string">&apos;chavesgu/scan_view&apos;</span>,
        creationParamsCodec: StandardMessageCodec(),
        creationParams: {
          <span class="hljs-string">&quot;r&quot;</span>: widget.scanLineColor.red,
          <span class="hljs-string">&quot;g&quot;</span>: widget.scanLineColor.green,
          <span class="hljs-string">&quot;b&quot;</span>: widget.scanLineColor.blue,
          <span class="hljs-string">&quot;a&quot;</span>: widget.scanLineColor.opacity,
          <span class="hljs-string">&quot;scale&quot;</span>: widget.scanAreaScale,
        },
        onPlatformViewCreated: (id) {
          _onPlatformViewCreated(id);
        },
      );
    } <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> (defaultTargetPlatform == TargetPlatform.ohos) {
      <span class="hljs-keyword">return</span> OhosView(
        viewType: <span class="hljs-string">&apos;chavesgu/scan_view&apos;</span>,
        creationParamsCodec: StandardMessageCodec(),
        creationParams: {
          <span class="hljs-string">&quot;r&quot;</span>: widget.scanLineColor.red,
          <span class="hljs-string">&quot;g&quot;</span>: widget.scanLineColor.green,
          <span class="hljs-string">&quot;b&quot;</span>: widget.scanLineColor.blue,
          <span class="hljs-string">&quot;a&quot;</span>: widget.scanLineColor.opacity,
          <span class="hljs-string">&quot;scale&quot;</span>: widget.scanAreaScale,
        },
        onPlatformViewCreated: (id) {
          _onPlatformViewCreated(id);
        },
      );
    } <span class="hljs-keyword">else</span> {
      <span class="hljs-keyword">return</span> Text(<span class="hljs-string">&apos;&#x5E73;&#x53F0;&#x6682;&#x4E0D;&#x652F;&#x6301;&apos;</span>);
    }
  }
}
</code></pre>
<hr>
<h2 id="&#x1F527;-&#x5173;&#x952E;&#x6280;&#x672F;&#x70B9;&#x8BB2;&#x89E3;">&#x1F527; &#x5173;&#x952E;&#x6280;&#x672F;&#x70B9;&#x8BB2;&#x89E3;</h2>
<h3 id="1-flutter-&#x4E0E;&#x9E3F;&#x8499;-next-&#x901A;&#x4FE1;">1. Flutter &#x4E0E;&#x9E3F;&#x8499; Next &#x901A;&#x4FE1;</h3>
<h4 id="&#x5E73;&#x53F0;&#x89C6;&#x56FE;&#x5DE5;&#x5382;&#x6CE8;&#x518C;">&#x5E73;&#x53F0;&#x89C6;&#x56FE;&#x5DE5;&#x5382;&#x6CE8;&#x518C;</h4>
<pre><code class="lang-typescript"><span class="hljs-keyword">import</span> {
  BinaryMessenger,
  PlatformView,
  Log,
  PlatformViewFactory,
  StandardMessageCodec
} from <span class="hljs-string">&apos;@ohos/flutter_ohos&apos;</span>;
<span class="hljs-keyword">import</span> { ScanPlatformView } from <span class="hljs-string">&apos;../views/ScanPlatformView&apos;</span>;

<span class="hljs-keyword">const</span> TAG: <span class="hljs-built_in">string</span> = <span class="hljs-string">&quot;FlutterScanPlugin&quot;</span>;

<span class="hljs-keyword">export</span> <span class="hljs-keyword">class</span> ScanViewFactory extends PlatformViewFactory {
  <span class="hljs-keyword">private</span> messenger: BinaryMessenger;

  <span class="hljs-keyword">constructor</span>(messenger: BinaryMessenger) {
    <span class="hljs-keyword">super</span>(StandardMessageCodec.INSTANCE);
    <span class="hljs-keyword">this</span>.messenger = messenger;
  }

  <span class="hljs-keyword">public</span> create(context: Context, id: <span class="hljs-built_in">number</span>, args: <span class="hljs-built_in">Object</span>): PlatformView {
    Log.i(TAG, <span class="hljs-string">&apos;create&apos;</span>)
    <span class="hljs-keyword">let</span> params: Map&lt;<span class="hljs-built_in">String</span>, <span class="hljs-built_in">Object</span>&gt; = args as Map&lt;<span class="hljs-built_in">String</span>, <span class="hljs-built_in">Object</span>&gt;
    <span class="hljs-keyword">return</span> <span class="hljs-keyword">new</span> ScanPlatformView(context, <span class="hljs-keyword">this</span>.messenger, id, params);
  }
}
</code></pre>
<h4 id="&#x53C2;&#x6570;&#x4F20;&#x9012;&#x4E0E;&#x63A5;&#x6536;">&#x53C2;&#x6570;&#x4F20;&#x9012;&#x4E0E;&#x63A5;&#x6536;</h4>
<pre><code class="lang-typescript">@Observed
<span class="hljs-keyword">export</span> <span class="hljs-keyword">class</span> ScanPlatformView extends PlatformView <span class="hljs-keyword">implements</span> MethodCallHandler, QRCodeReadListener {
  <span class="hljs-keyword">public</span> getView(): WrappedBuilder&lt;[Params]&gt; {
    <span class="hljs-comment">// &#x8FD4;&#x56DE; WrappedBuilder&lt;[Params]&gt;&#xFF0C;&#x4E25;&#x683C;&#x5339;&#x914D;&#x57FA;&#x7C7B;&#x8981;&#x6C42;</span>
    <span class="hljs-keyword">return</span> <span class="hljs-keyword">new</span> WrappedBuilder(CustomScanPage({ args: params }));
  }
}

@Component
<span class="hljs-keyword">export</span> struct CustomScanPage {
  aboutToAppear(): <span class="hljs-built_in">void</span> {
    <span class="hljs-keyword">if</span>(<span class="hljs-keyword">this</span>.args != <span class="hljs-literal">null</span>){
      <span class="hljs-keyword">const</span> scanPlatformView = <span class="hljs-keyword">this</span>.args.platformView as ScanPlatformView;
      <span class="hljs-keyword">this</span>.params = scanPlatformView.params!;
    }

    <span class="hljs-keyword">if</span> (<span class="hljs-keyword">this</span>.params) {
      <span class="hljs-keyword">this</span>.mScale = <span class="hljs-keyword">this</span>.params.get(<span class="hljs-string">&quot;scale&quot;</span>) as <span class="hljs-built_in">number</span>
      <span class="hljs-keyword">this</span>.customScanVM.setScale(<span class="hljs-keyword">this</span>.mScale)
      Log.i(TAG, <span class="hljs-string">&apos;initParams mScale=&apos;</span> + <span class="hljs-keyword">this</span>.mScale)

      <span class="hljs-keyword">let</span> r: <span class="hljs-built_in">number</span> = <span class="hljs-keyword">this</span>.params.get(<span class="hljs-string">&quot;r&quot;</span>) as <span class="hljs-built_in">number</span>
      <span class="hljs-keyword">let</span> g: <span class="hljs-built_in">number</span> = <span class="hljs-keyword">this</span>.params.get(<span class="hljs-string">&quot;g&quot;</span>) as <span class="hljs-built_in">number</span>
      <span class="hljs-keyword">let</span> b: <span class="hljs-built_in">number</span> = <span class="hljs-keyword">this</span>.params.get(<span class="hljs-string">&quot;b&quot;</span>) as <span class="hljs-built_in">number</span>
      <span class="hljs-keyword">let</span> a: <span class="hljs-built_in">number</span> = <span class="hljs-keyword">this</span>.params.get(<span class="hljs-string">&quot;a&quot;</span>) as <span class="hljs-built_in">number</span>

      <span class="hljs-comment">// &#x989C;&#x8272;&#x503C;&#x8303;&#x56F4;&#x68C0;&#x67E5;</span>
      a = <span class="hljs-built_in">Math</span>.max(<span class="hljs-number">0</span>, <span class="hljs-built_in">Math</span>.min(<span class="hljs-number">255</span>, a));
      r = <span class="hljs-built_in">Math</span>.max(<span class="hljs-number">0</span>, <span class="hljs-built_in">Math</span>.min(<span class="hljs-number">255</span>, r));
      g = <span class="hljs-built_in">Math</span>.max(<span class="hljs-number">0</span>, <span class="hljs-built_in">Math</span>.min(<span class="hljs-number">255</span>, g));
      b = <span class="hljs-built_in">Math</span>.max(<span class="hljs-number">0</span>, <span class="hljs-built_in">Math</span>.min(<span class="hljs-number">255</span>, b));

      Log.i(TAG, <span class="hljs-string">&apos;initParams scanLineColor a =&apos;</span> + a)
      <span class="hljs-keyword">this</span>.scanLineColor = <span class="hljs-keyword">this</span>.rgbaToHex(a, r, g, b)
    }
  }
}
</code></pre>
<h3 id="2-&#x901A;&#x4FE1;&#x673A;&#x5236;&#x8BE6;&#x89E3;">2. &#x901A;&#x4FE1;&#x673A;&#x5236;&#x8BE6;&#x89E3;</h3>
<h4 id="&#x6570;&#x636E;&#x6D41;&#x5411;">&#x6570;&#x636E;&#x6D41;&#x5411;</h4>
<pre><code class="lang-mermaid">sequenceDiagram
    participant F as Flutter
    participant P as PlatformView
    participant H as &#x9E3F;&#x8499;&#x539F;&#x751F;
    participant C as &#x76F8;&#x673A;&#x7EC4;&#x4EF6;

    F-&gt;&gt;P: &#x521B;&#x5EFA; OhosView
    P-&gt;&gt;H: &#x6CE8;&#x518C; ScanViewFactory
    H-&gt;&gt;C: &#x521B;&#x5EFA; CustomScanPage
    C-&gt;&gt;H: &#x8FD4;&#x56DE;&#x626B;&#x63CF;&#x7ED3;&#x679C;
    H-&gt;&gt;P: &#x901A;&#x8FC7; MethodChannel &#x4F20;&#x9012;
    P-&gt;&gt;F: &#x56DE;&#x8C03; onCapture
</code></pre>
<h4 id="&#x5173;&#x952E;&#x7EC4;&#x4EF6;&#x8BF4;&#x660E;">&#x5173;&#x952E;&#x7EC4;&#x4EF6;&#x8BF4;&#x660E;</h4>
<table>
<thead>
<tr>
<th>&#x7EC4;&#x4EF6;</th>
<th>&#x4F5C;&#x7528;</th>
<th>&#x8BF4;&#x660E;</th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>ScanViewFactory</strong></td>
<td>&#x89C6;&#x56FE;&#x5DE5;&#x5382;</td>
<td>&#x521B;&#x5EFA;&#x5E73;&#x53F0;&#x89C6;&#x56FE;&#x5B9E;&#x4F8B;</td>
</tr>
<tr>
<td><strong>ScanPlatformView</strong></td>
<td>&#x5E73;&#x53F0;&#x89C6;&#x56FE;</td>
<td>&#x6865;&#x63A5; Flutter &#x548C;&#x9E3F;&#x8499;</td>
</tr>
<tr>
<td><strong>CustomScanPage</strong></td>
<td>&#x626B;&#x63CF;&#x9875;&#x9762;</td>
<td>&#x5B9E;&#x9645;&#x7684;&#x626B;&#x63CF;&#x754C;&#x9762;</td>
</tr>
<tr>
<td><strong>MethodChannel</strong></td>
<td>&#x901A;&#x4FE1;&#x901A;&#x9053;</td>
<td>&#x6570;&#x636E;&#x4F20;&#x9012;&#x548C;&#x56DE;&#x8C03;</td>
</tr>
</tbody>
</table>
<hr>
<h2 id="&#x1F4F1;-flutter-&#x7AEF;&#x4F7F;&#x7528;">&#x1F4F1; Flutter &#x7AEF;&#x4F7F;&#x7528;</h2>
<h3 id="&#x5B8C;&#x6574;&#x4F7F;&#x7528;&#x793A;&#x4F8B;">&#x5B8C;&#x6574;&#x4F7F;&#x7528;&#x793A;&#x4F8B;</h3>
<pre><code class="lang-dart"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">ScanPage</span> <span class="hljs-keyword">extends</span> <span class="hljs-title">StatelessWidget</span> </span>{
  ScanController controller = ScanController();

  <span class="hljs-meta">@override</span>
  Widget build(BuildContext context) {
    <span class="hljs-keyword">return</span> Scaffold(
      body: SafeArea(
        top: <span class="hljs-keyword">true</span>,
        bottom: <span class="hljs-keyword">true</span>,
        child: Stack(
          children: [
            <span class="hljs-comment">// &#x626B;&#x63CF;&#x89C6;&#x56FE;</span>
            ScanView(
              controller: controller,
              scanAreaScale: <span class="hljs-number">.7</span>,
              scanLineColor: Colors.red,
              onCapture: (data) {
                <span class="hljs-comment">// &#x5904;&#x7406;&#x626B;&#x63CF;&#x7ED3;&#x679C;</span>
                Navigator.push(context, MaterialPageRoute(
                  builder: (BuildContext context) {
                    <span class="hljs-keyword">return</span> Scaffold(
                      appBar: AppBar(
                        title: Text(<span class="hljs-string">&apos;&#x626B;&#x63CF;&#x7ED3;&#x679C;&apos;</span>),
                      ),
                      body: Center(
                        child: Text(data),
                      ),
                    );
                  },
                )).then((value) {
                  controller.resume();
                });
              },
            ),
            <span class="hljs-comment">// &#x63A7;&#x5236;&#x6309;&#x94AE;</span>
            Positioned(
              bottom: <span class="hljs-number">0</span>,
              child: Row(
                children: [
                  ElevatedButton(
                    child: Text(<span class="hljs-string">&quot;&#x5207;&#x6362;&#x624B;&#x7535;&#x7B52;&quot;</span>),
                    onPressed: () {
                      controller.toggleTorchMode();
                    },
                  ),
                  ElevatedButton(
                    child: Text(<span class="hljs-string">&quot;&#x6682;&#x505C;&quot;</span>),
                    onPressed: () {
                      controller.pause();
                    },
                  ),
                  ElevatedButton(
                    child: Text(<span class="hljs-string">&quot;&#x6062;&#x590D;&quot;</span>),
                    onPressed: () {
                      controller.resume();
                    },
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}
</code></pre>
<h3 id="&#x63A7;&#x5236;&#x5668;&#x4F7F;&#x7528;">&#x63A7;&#x5236;&#x5668;&#x4F7F;&#x7528;</h3>
<pre><code class="lang-dart"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">ScanController</span> </span>{
  MethodChannel? _channel;

  <span class="hljs-comment">// &#x6682;&#x505C;&#x626B;&#x63CF;</span>
  <span class="hljs-keyword">void</span> pause() {
    _channel?.invokeMethod(<span class="hljs-string">&apos;pause&apos;</span>);
  }

  <span class="hljs-comment">// &#x6062;&#x590D;&#x626B;&#x63CF;</span>
  <span class="hljs-keyword">void</span> resume() {
    _channel?.invokeMethod(<span class="hljs-string">&apos;resume&apos;</span>);
  }

  <span class="hljs-comment">// &#x5207;&#x6362;&#x624B;&#x7535;&#x7B52;</span>
  <span class="hljs-keyword">void</span> toggleTorchMode() {
    _channel?.invokeMethod(<span class="hljs-string">&apos;toggleTorchMode&apos;</span>);
  }
}
</code></pre>
<hr>
<h2 id="&#x1F3AF;-&#x6700;&#x4F73;&#x5B9E;&#x8DF5;">&#x1F3AF; &#x6700;&#x4F73;&#x5B9E;&#x8DF5;</h2>
<h3 id="1-&#x6027;&#x80FD;&#x4F18;&#x5316;">1. &#x6027;&#x80FD;&#x4F18;&#x5316;</h3>
<pre><code class="lang-typescript"><span class="hljs-comment">// &#x9E3F;&#x8499;&#x7AEF;&#x4F18;&#x5316;</span>
aboutToAppear(): <span class="hljs-built_in">void</span> {
  <span class="hljs-comment">// &#x5EF6;&#x8FDF;&#x521D;&#x59CB;&#x5316;&#xFF0C;&#x907F;&#x514D;&#x963B;&#x585E; UI</span>
  setTimeout(() =&gt; {
    <span class="hljs-keyword">this</span>.initParams();
    <span class="hljs-keyword">this</span>.setupListeners();
  }, <span class="hljs-number">0</span>);
}

<span class="hljs-comment">// &#x5185;&#x5B58;&#x7BA1;&#x7406;</span>
aboutToDisappear(): <span class="hljs-built_in">void</span> {
  <span class="hljs-keyword">this</span>.cleanup();
  <span class="hljs-keyword">this</span>.removeListeners();
}
</code></pre>
<h3 id="2-&#x9519;&#x8BEF;&#x5904;&#x7406;">2. &#x9519;&#x8BEF;&#x5904;&#x7406;</h3>
<pre><code class="lang-dart"><span class="hljs-comment">// Flutter &#x7AEF;&#x9519;&#x8BEF;&#x5904;&#x7406;</span>
<span class="hljs-keyword">void</span> _onPlatformViewCreated(<span class="hljs-built_in">int</span> id) {
  _channel = MethodChannel(<span class="hljs-string">&apos;chavesgu/scan/method_$id&apos;</span>);
  _channel?.setMethodCallHandler((MethodCall call) <span class="hljs-keyword">async</span> {
    <span class="hljs-keyword">try</span> {
      <span class="hljs-keyword">if</span> (call.method == <span class="hljs-string">&apos;onCaptured&apos;</span>) {
        <span class="hljs-keyword">if</span> (widget.onCapture != <span class="hljs-keyword">null</span>)
          widget.onCapture!(call.arguments.toString());
      }
    } <span class="hljs-keyword">catch</span> (e) {
      <span class="hljs-built_in">print</span>(<span class="hljs-string">&apos;&#x626B;&#x63CF;&#x9519;&#x8BEF;: $e&apos;</span>);
    }
  });
}
</code></pre>
<h3 id="3-&#x751F;&#x547D;&#x5468;&#x671F;&#x7BA1;&#x7406;">3. &#x751F;&#x547D;&#x5468;&#x671F;&#x7BA1;&#x7406;</h3>
<pre><code class="lang-typescript"><span class="hljs-comment">// &#x9E3F;&#x8499;&#x7AEF;&#x751F;&#x547D;&#x5468;&#x671F;</span>
onPageShow() {
  <span class="hljs-keyword">this</span>.customScanVM.resume();
}

onPageHide() {
  <span class="hljs-keyword">this</span>.customScanVM.pause();
}
</code></pre>
<hr>
<h2 id="&#x1F6A8;-&#x5E38;&#x89C1;&#x95EE;&#x9898;">&#x1F6A8; &#x5E38;&#x89C1;&#x95EE;&#x9898;</h2>
<h3 id="q1-&#x626B;&#x63CF;&#x754C;&#x9762;&#x663E;&#x793A;&#x7A7A;&#x767D;&#x600E;&#x4E48;&#x529E;&#xFF1F;">Q1: &#x626B;&#x63CF;&#x754C;&#x9762;&#x663E;&#x793A;&#x7A7A;&#x767D;&#x600E;&#x4E48;&#x529E;&#xFF1F;</h3>
<p><strong>A</strong>: &#x68C0;&#x67E5;&#x4EE5;&#x4E0B;&#x51E0;&#x70B9;&#xFF1A;</p>
<ul>
<li>&#x786E;&#x4FDD;&#x76F8;&#x673A;&#x6743;&#x9650;&#x5DF2;&#x6388;&#x4E88;</li>
<li>&#x68C0;&#x67E5; XComponent &#x914D;&#x7F6E;&#x662F;&#x5426;&#x6B63;&#x786E;</li>
<li>&#x9A8C;&#x8BC1;&#x626B;&#x63CF;&#x53C2;&#x6570;&#x4F20;&#x9012;&#x662F;&#x5426;&#x6210;&#x529F;</li>
</ul>
<h3 id="q2-&#x626B;&#x63CF;&#x7ED3;&#x679C;&#x65E0;&#x6CD5;&#x56DE;&#x8C03;&#x600E;&#x4E48;&#x529E;&#xFF1F;">Q2: &#x626B;&#x63CF;&#x7ED3;&#x679C;&#x65E0;&#x6CD5;&#x56DE;&#x8C03;&#x600E;&#x4E48;&#x529E;&#xFF1F;</h3>
<p><strong>A</strong>: &#x786E;&#x4FDD;&#xFF1A;</p>
<ul>
<li>MethodChannel &#x6B63;&#x786E;&#x521D;&#x59CB;&#x5316;</li>
<li>&#x56DE;&#x8C03;&#x65B9;&#x6CD5;&#x6B63;&#x786E;&#x6CE8;&#x518C;</li>
<li>&#x53C2;&#x6570;&#x4F20;&#x9012;&#x683C;&#x5F0F;&#x6B63;&#x786E;</li>
</ul>
<h3 id="q3-&#x6027;&#x80FD;&#x95EE;&#x9898;&#x5982;&#x4F55;&#x4F18;&#x5316;&#xFF1F;">Q3: &#x6027;&#x80FD;&#x95EE;&#x9898;&#x5982;&#x4F55;&#x4F18;&#x5316;&#xFF1F;</h3>
<p><strong>A</strong>: &#x5EFA;&#x8BAE;&#xFF1A;</p>
<ul>
<li>&#x5408;&#x7406;&#x8BBE;&#x7F6E;&#x626B;&#x63CF;&#x533A;&#x57DF;&#x5927;&#x5C0F;</li>
<li>&#x907F;&#x514D;&#x9891;&#x7E41;&#x7684; UI &#x66F4;&#x65B0;</li>
<li>&#x53CA;&#x65F6;&#x6E05;&#x7406;&#x8D44;&#x6E90;</li>
</ul>
<hr>
<h2 id="&#x1F4DA;-&#x603B;&#x7ED3;">&#x1F4DA; &#x603B;&#x7ED3;</h2>
<p>&#x901A;&#x8FC7;&#x672C;&#x6587;&#x7684;&#x5B66;&#x4E60;&#xFF0C;&#x5F00;&#x53D1;&#x8005;&#x53EF;&#x4EE5;&#x5FEB;&#x901F;&#x5B9E;&#x73B0; Flutter &#x4E0E;&#x9E3F;&#x8499; Next &#x7684;&#x6DF1;&#x5EA6;&#x96C6;&#x6210;&#xFF0C;&#x5728;&#x4FDD;&#x8BC1;&#x8DE8;&#x5E73;&#x53F0; UI &#x4E00;&#x81F4;&#x6027;&#x7684;&#x540C;&#x65F6;&#xFF0C;&#x5145;&#x5206;&#x53D1;&#x6325;&#x9E3F;&#x8499;&#x539F;&#x751F;&#x80FD;&#x529B;&#x3002;</p>
<h3 id="&#x6838;&#x5FC3;&#x8981;&#x70B9;">&#x6838;&#x5FC3;&#x8981;&#x70B9;</h3>
<ol>
<li><strong>&#x6DF7;&#x5408;&#x6E32;&#x67D3;&#x67B6;&#x6784;</strong> - &#x4F7F;&#x7528; PlatformView &#x5B9E;&#x73B0;&#x539F;&#x751F;&#x529F;&#x80FD;&#x96C6;&#x6210;</li>
<li><strong>&#x901A;&#x4FE1;&#x673A;&#x5236;</strong> - &#x901A;&#x8FC7; MethodChannel &#x5B9E;&#x73B0;&#x6570;&#x636E;&#x4F20;&#x9012;</li>
<li><strong>&#x751F;&#x547D;&#x5468;&#x671F;&#x7BA1;&#x7406;</strong> - &#x6B63;&#x786E;&#x5904;&#x7406;&#x9875;&#x9762;&#x663E;&#x793A;&#x548C;&#x9690;&#x85CF;</li>
<li><strong>&#x6027;&#x80FD;&#x4F18;&#x5316;</strong> - &#x5408;&#x7406;&#x7BA1;&#x7406;&#x8D44;&#x6E90;&#x548C;&#x5185;&#x5B58;</li>
</ol>
<h3 id="&#x6280;&#x672F;&#x4F18;&#x52BF;">&#x6280;&#x672F;&#x4F18;&#x52BF;</h3>
<ul>
<li>&#x2705; <strong>&#x8DE8;&#x5E73;&#x53F0; UI &#x4E00;&#x81F4;&#x6027;</strong> - Flutter &#x63D0;&#x4F9B;&#x7EDF;&#x4E00;&#x7684;&#x754C;&#x9762;&#x4F53;&#x9A8C;</li>
<li>&#x2705; <strong>&#x539F;&#x751F;&#x529F;&#x80FD;&#x6DF1;&#x5EA6;&#x96C6;&#x6210;</strong> - &#x5145;&#x5206;&#x5229;&#x7528;&#x9E3F;&#x8499;&#x7CFB;&#x7EDF;&#x80FD;&#x529B;</li>
<li>&#x2705; <strong>&#x9AD8;&#x6027;&#x80FD;&#x8868;&#x73B0;</strong> - &#x539F;&#x751F;&#x6E32;&#x67D3;&#x786E;&#x4FDD;&#x6D41;&#x7545;&#x4F53;&#x9A8C;</li>
<li>&#x2705; <strong>&#x5F00;&#x53D1;&#x6548;&#x7387;</strong> - &#x4E00;&#x5957;&#x4EE3;&#x7801;&#x591A;&#x5E73;&#x53F0;&#x90E8;&#x7F72;</li>
</ul>
<hr>
<h2 id="&#x1F517;-&#x76F8;&#x5173;&#x8D44;&#x6E90;">&#x1F517; &#x76F8;&#x5173;&#x8D44;&#x6E90;</h2>
<ul>
<li><a href="https://gitcode.com/nutpi/fluttertpc_scan" target="_blank">fluttertpc_scan &#x9879;&#x76EE;&#x5730;&#x5740;</a></li>
<li><a href="https://docs.flutter.dev/development/platform-integration/platform-channels" target="_blank">Flutter &#x5E73;&#x53F0;&#x96C6;&#x6210;&#x6587;&#x6863;</a></li>
<li><a href="../">&#x9E3F;&#x8499; Flutter &#x6DF7;&#x5408;&#x5F00;&#x53D1;&#x6307;&#x5357;</a></li>
</ul>
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